- Our next project is to model the handlebars…and the handlebar grips.…Let's create a couple of layers,…3D-Handlebars and 3D-Grips.…I'll give the grips a darker color, color 251.…I'll set layer 3D-Handlebars current…by double-click right here.…I'm going to orbit around.…I want to draw a circle in here,…but I need to do that with the UCS Flat on the ground,…so I'll type UCS, enter, enter, and then circle,…and I'll snap the circle to the centerpoint…and then snap the radius to some point here on the edge.…

Then, on the Surface tab, choose Sweep,…select the last object, l, enter, enter,…and then click on the sweep path.…Let's patch the end of the handlebar.…Now I'd like to build the grips…that go around this handlebar.…Notice that this is bent back at some angle.…I can't just draw a circle normally and extrude it.…Instead, what I'm going to do is,…extract 2D information from this three-dimensional surface.…

I'll set the 3D-Grips layer current,…so that the geometry that I create will go on that layer.…Then, over here, I'll say, Extract Isolines.…

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Author

Released

11/11/2014

You can model almost any form imaginable with AutoCAD's surface toolset. In this project-based course, Scott Onstott teaches you all the techniques required to solve complex modeling challenges in AutoCAD, while focusing on an innovative ebike design. Learn to create each 3D component of the bicycle model, including its frame, belt-tensioner mechanism, drivetrain, electric-assist power components, brakes, wheels, axels, hubs, spokes, handlebars, and even the bicycle seat. The techniques (which can be applied to other mechanical models) cover extruding profiles, lofting 2D cross sections, revolving profiles around an axis, filleting edges, smoothing meshes into organic forms, and sculpting complex NURBS surfaces.